BMI Calculators
Body Mass Index calculators for adults, children, athletes, and special populations
Calculators & Tools
BMI Calculator
The BMI Calculator computes your Body Mass Index using your height and weight, then maps the result against WHO classification categories from underweight through to obese Class III. It supports both metric (kg and cm) and imperial (lbs and feet/inches) inputs. Use it to establish a baseline, set a healthy weight target, or monitor progress over time.
BMI Calculator for Men
The BMI Calculator for Men computes your Body Mass Index and adds two male-specific outputs: an estimated body fat percentage using the Deurenberg formula and a waist circumference risk assessment against the AHA threshold of 102 cm (40 inches) for men. Enter your height, weight, age, and optional waist measurement to get a complete male body composition picture alongside the standard WHO BMI category.